Progressive Suspension Series 412 without Covers Shock absorberRef : PRSU00083A / 13100661

Series 412 Shock Absorber without Covers by Progressive Suspension (manufacturer part number: 412-4038B). Specifically designed for many Harleys, this black-out shock absorber is aimed at vintage/classic and touring riders looking for a robust, adjustable, and understated suspension. Steel body, gas-charged damping, and internal reservoir provide a compact and durable solution suited to the demands of the road.

• Extended Length: 318 mm (12.50"), measured centre to centre of the eyelet.
• Preload Adjustment: 5-position cam to adjust the spring preload according to load and rider.
• Finish: black, without covers — discreet look and durable finish.
• Material: steel – solid construction for road and touring use.
• Damping Method: gas-charged with internal reservoir for progressive control.

Before installation, check the dimensions and wheel travel: a shock absorber longer or shorter than the OEM may slightly alter the rake and thus the responsiveness of the steering. On certain XL models ('86-'15), modification or spacing of the chain/belt guard may be necessary to ensure clearance. Some references from the 412 series are road-approved — consult the most recent certificate for the up-to-date list. Particularly suitable for Dyna models and loaded touring machines.